bolthead'bəʊlthed英式朗读美式朗读基本解释螺钉的头, 长颈烧瓶, (枪)机头英文释义n. A long, straight-necked, glass vessel for chemical distillations; -- called also a matrass or receiver. n. The head of a bolt.上一个单词:bolters下一个单词:bolthole